[MIKX]

Hi,

In Mac Pros what is this heatsink for ? What is under it, is more to the point.
It is in front of the CPUs in the Mac Pro and yes, I did remove the dust



Next question . .

What is this socket for? It is below DIMM riser B in my Mac Pro.


Thanks in advance.

[mduell]

Hot and near the CPU socket -> PWM circuitry for the CPU

I don't know about the second one.

[macwall]

The second one is for a modem.

[tooki]

There's no internal dialup modem available for any Intel Mac.

antonio